Metric performed a rare acoustic set at the Boston Phoenix/WFNX 2009 Best Music Poll Concert, August 1, 2009 on Boston's City Hall Plaza. For video of the performance, behind-the-scenes photos, and interview audio, visit the online Best Music Poll Concert Museum.

Photos: Backstage with Metric In which Emily Hanes keeps her legs very, very crossed. Metric performed a rare acoustic set, as a duo, at WFNX and the Boston Phoenix's Best Music Poll Concert at City Hall Plaza in Boston on August 1, 2009.

Photos: The Bravery at Best Music Poll 2009 The Bravery headlined the Boston Phoenix and WFNX's annual Best Music Poll Concert on August 1, 2009 on Boston's City Hall Plaza. Not pictured: WFNX DJ Paul Driscoll sitting in drums for a surprise Journey cover.

Photos: Gaslight Anthem at Best Music Poll 2009 Biggest mosh pit of Best Music Poll 2009? That's easy: the Gaslight Anthem's set, which had worried punks milling around City Hall four hours before showtime, like they were gonna miss a parole hearing.

Photos: Backstage with Metric In which Emily Hanes keeps her legs very, very crossed. Metric performed a rare acoustic set, as a duo, at WFNX and the Boston Phoenix's Best Music Poll Concert at City Hall Plaza in Boston on August 1, 2009.

Photos: The Bravery at Best Music Poll 2009 The Bravery headlined the Boston Phoenix and WFNX's annual Best Music Poll Concert on August 1, 2009 on Boston's City Hall Plaza. Not pictured: WFNX DJ Paul Driscoll sitting in drums for a surprise Journey cover.

Photos: Gaslight Anthem at Best Music Poll 2009 Biggest mosh pit of Best Music Poll 2009? That's easy: the Gaslight Anthem's set, which had worried punks milling around City Hall four hours before showtime, like they were gonna miss a parole hearing.

Photos: Airborne Toxic Event at BMP 2009 The Airborne Toxic Event have become, for all intents and purposes, the WFNX house band. So how the hell did they still manage to surprise us with the pentultimate set at the 2009 Best Music Poll Concert? Might have been the new songs -- but it also might've been the stage dives. For video from TATE's BMP performance, behind-the-scenes photos, and interview audio, visit the 2009 Best Music Poll Concert Museum online .

Best Music Poll 2009 concert Stream audio of all the bands' performances, watch video highlights, download interview podcasts, browse concert and behind-the-scenes photos, and share your own photos and videos at the Boston Phoenix Web site or WFNX's site.

PHOTOS: METRIC AT BEST MUSIC POLL 2009 | August 03, 2009 Metric performed a rare acoustic set at the Boston Phoenix/WFNX 2009 Best Music Poll Concert, August 1, 2009 on Boston's City Hall Plaza. For video of the performance, behind-the-scenes photos, and interview audio, visit the online Best Music Poll Concert Museum .